10 20 30 40 50 GGUCUACGUCUGUUGGA- GG-| UA U C GAGGU ACGCUU UUUG GGCAGUG AGUUAG UGAUUGU U UGCGGA AAAC CUGUCAU UCGAUC ACUAACG U AGCGUCUCACCCUUAGGG ACA^ UA U - GUUCC 110 100 90 80 70 60